I'm about 5'6", 150 lbs., and 30" at the waist. I bought a size 3, and it fits perfectly. The fabric is very light and soft. I'm removing one star, because I feel as if the price could come down a bit. I paid $80 for the full uniform. I paid the same price for my Atama jiu jitsu gi, which is much nicer with far heavier fabric.